vitamin

        英 ['v?t?m?n; 'va?t-] 美['va?t?m?n]
        • n. [生化] 維生素;[生化] 維他命

        CET4TEM4考研CET6中頻詞常用詞匯

        詞態(tài)變化


        復(fù)數(shù):?vitamins;

        助記提示


        1. vit- "life" + -amin (原為-amine, 由于后來(lái)發(fā)現(xiàn)其中沒(méi)有氨基酸,顧將后面的字母e去掉了,其實(shí)作為物質(zhì)的代稱,現(xiàn)在加不加字母e都沒(méi)什么關(guān)系啦)。
        2. 該詞有兩種譯名,一種是意譯,即“維生素”,表示維持生命的元素,顧簡(jiǎn)稱為維生素;另一種是音譯,即“維他命”,根據(jù)發(fā)音直譯過(guò)來(lái)的,很好理解。

        中文詞源


        vitamin 維他命,生命素

        最早寫(xiě)做vitamine,來(lái)自vit-,生命,-amine,氨。后證實(shí)這種物質(zhì)不屬于氨基,因此字母e脫落。

        英文詞源


        vitamin
        vitamin: [20] Vitamins were originally vitamines: the Polish-born biochemist Casimir Funk who introduced them to the world in 1920 believed that they were amino acids and so formed the name from Latin vita ‘life’ and amine. It was soon discovered that Funk’s belief was mistaken, and alternative names were suggested, but in 1920 it was successfully proposed (by J.C. Drummond) that the -e be dropped to avoid confusion, and the form vitamin was born.
        => amine, vital
        vitamin (n.)
        1920, originally vitamine (1912) coined by Polish biochemist Casimir Funk (1884-1967), from Latin vita "life" (see vital) + amine, because they were thought to contain amino acids. The terminal -e formally was stripped off when scientists learned the true nature of the substance; -in was acceptable because it was used for neutral substances of undefined composition. The lettering system of nomenclature (Vitamin A, B, C, etc.) was introduced at the same time (1920).

        雙語(yǔ)例句


        1. Butter, margarine, and oily fish are all good sources of vitamin D.
        黃油、人造黃油和多脂魚(yú)都含有豐富的維生素D。

        來(lái)自柯林斯例句

        2. You can buy a formulation containing royal jelly, pollen and vitamin C.
        可以買一種含蜂王漿、花粉和維生素C的配方產(chǎn)品。

        來(lái)自柯林斯例句

        3. Liver and kidney are particularly rich in vitamin A.
        肝臟和腎臟富含維生素A。

        來(lái)自柯林斯例句

        4. He was put on a high dosage of vitamin C.
        給他服了大劑量的維生素C。

        來(lái)自柯林斯例句

        5. The odour of vitamin in skin is repugnant to insects.
        昆蟲(chóng)很討厭皮膚內(nèi)維生素的氣味。

        來(lái)自柯林斯例句

        亚洲日韩涩涩成人午夜私人影院 | 中文字幕亚洲日本岛国片| 亚洲1区1区3区4区产品乱码芒果| 亚洲成人在线电影| 亚洲国产成人精品无码区在线观看 | 亚洲一本一道一区二区三区| 亚洲一区精品视频在线| 亚洲国语在线视频手机在线| 亚洲天堂一区二区三区| 亚洲乱码中文字幕小综合| 亚洲免费福利视频| 亚洲伊人久久精品| 亚洲人精品亚洲人成在线| 亚洲中文字幕无码久久| 亚洲精品永久在线观看| 亚洲Aⅴ在线无码播放毛片一线天 亚洲avav天堂av在线网毛片 | 国产亚洲精品美女2020久久| 偷自拍亚洲视频在线观看 | 亚洲综合色丁香麻豆| 亚洲国产成人精品无码区在线秒播| 亚洲成年人免费网站| 亚洲av永久无码精品天堂久久 | 亚洲伊人久久精品| 亚洲色成人WWW永久在线观看 | 精品国产亚洲AV麻豆| 亚洲国产精品毛片av不卡在线| 亚洲精品人成无码中文毛片 | 亚洲国产日韩精品| 亚洲色偷偷偷综合网| 在线观看亚洲免费| 亚洲中文字幕无码爆乳av中文| 亚洲色自偷自拍另类小说| 亚洲AV无码专区电影在线观看 | 亚洲AV无码一区二区三区国产| 中文字幕亚洲日韩无线码| 亚洲av日韩综合一区在线观看| 亚洲精品中文字幕乱码| 亚洲人成网站在线播放2019| 无码国产亚洲日韩国精品视频一区二区三区 | 亚洲高清免费在线观看| 亚洲精品午夜国产va久久|